Cultivator.



PATENTED NOV. 10, 1903.

J. H. MARTIN.

GULTIVATOR.

AYIVQLIGATION FILED N 0V. 28. 1902.

H0 MODEL.

W/7'NE5555 m if H /Z w WW m Zfi wf .Jwf J. Mm? N? k YHE Norms virus 00..rneraum UNITED STATES Patented November 10, 1903. A

PATENT OFFICE.

JOSEPH H. MARTIN, OF RIVERSIDE, CALIFORNIA, ASSIGNOR OF ONE-HALF TO R.W. A. GODFREY, OF RIVERSIDE, CALIFORNIA.

cu LTtVATOR.

SPECIFICATION forming part of Letters Patent No. 743,535, dated November10, 1903-.

Application filed November 26, 1902. Serial No. 132,957. (No model.)

To wZZ whom it Vita/y concern:

Be it known that I, JOSEPH H. MARTIN, a citi zen of the United States,residing at Riverside, in the county of Riverside and State ofCalifornia, have inventednew and useful Im-.

provements in Cultivators, of which the following is a specification.

My invention relates to a cultivator to be operated by power preferablycarriedon the cultivator; and the objects thereof are to produce amachine which carries its own power and in which the cultivating meansmay be carried either entirely above the surface of the ground or mayengage therewith, so as to cultivate the soil. I accomplish theseobjects by the mechanism described herein and illustrated in theaccompanying drawings, forming a part hereof, in which- Figure 1 is aperspective view of my cultivator with parts broken away for clearnessof illustration. Figs. 2 and 3 are details of the cultivator-wheels.Fig. 4 is'a detail view of shaft and double ratchet-wheel.

In the drawings, A is the main frame of my.

cultivator, in the rear end of which are mounted the traction-wheels B,and in the front end is mounted the steering-wheel 0, having theguiding-lever D. To each side of and near the front end of the mainframe are pivoted at a. the bars E, to which are secured boxes F, inwhich is revolubly mounted the axle G, on which are rigidly mounted thecultivator-wheels H, having secured to their peripheries the removablestirrer-teeth I, which are set, preferably, near the edges thereof,those on one side alternating with those of the other side. There may beas many of these teeth as desired. To the rear end of the bars E arepivoted rack-bars J, whose teeth mesh with gears K, rigidly mounted onshaft L, which shaft is revolubly mounted in bearings M, affixed to theframe. On shaft L is rigidly mountedsprocket-wheel N, which is connectedby sprocket chain 0 with sprocket-wheel P, mounted on shaft R. On shaftR-is rigidly mounted the ratchet-wheel S, having two sets of teeth, oneset, 0, for the engagement of one end of the pivoted lever T, which isnormally held spring-pressed in engagement with the ratchet to preventthe rotation of shaft R, and the other set of teeth,

0', are engaged by dete'nt-dog U, operatively connected to lever V,which is loosely mounted on shaft R, by means of which shaft R may berotated in either direction when lever T is out of engagement with teeth0 to cause the cultivator-wheels to be carriedentirely the drawings, orto cause them to contact with the ground and, if desired, to also elevate the traction-wheels above the surface of the ground, and thereby tothrow the whole or a part of the weight of such wheels and the part ofthe weight of the other parts which is carried by them upon thecultivator-wheels. A sprocket-wheel W is rigidly mounted upon the axleof the traction-wheels and is operatively connected by sprocket-chain Xwith one side of the double-toothed sprocketwheel Y, which is looselymounted on shaft L. The other side of said double-toothed sprocket chainZ with sprocket wheel b, loosely mounted on shaft 0, which is rotativelymounted in bearingsd,aftixed to the frame. On shaftc is also looselymounted sprocket-wheel e, which is operatively connected bysprocketchain f with sprocket-wheel g, rigidly mounted on axle G.Between sprocket-wheels Z2 and e is slidably mounted a clutch t',rotatable with shaft 0, which clutch is adapted to lock either wheel bor wheel e to shaft c, and thereby cause either the traction-wheels orthe cultivator-wheels to drive the machine when it carries its ownpower. A gasolene-engine j is mounted on the front end of the frame andis operatively connected to the crank it of shaft c by pitman Z. Shaftc, which may be called the driving-shaft, carries fly-wheel m. A seat nis affixed on the front of the frame for the use of the operator. In theoperation of my cultivator when it isdesired to transport the machinefrom place to place the cultivator-wheels are drawn up out of contactwith the ground, and clutch 7 is thrown to lock sprocket b to shaft 0,as shown in the drawings, and the gasolene-engine is started. Themachine is then propelled by the power furnished by the engine, thetraction-wheels propelling the machine and the operator guiding it withlever D. When the machine has reached a field that is to be cultivated,the

above the surface of the ground, as shown in sprocket-wheel isoperatively connected by IOC clutch is thrown out of engagement withsprocket b and into engagement with sprocket e. The cultivator-wheelsare then lowered so as to engage the ground and then become the drivingmeans instead of the traction- Wheels, which are then idlers, and may beraised entirely off the ground, if desired, levers I and V beingproperly operated to effect that object, the stirrer-blades operating tocultivate the soil. Ifdesired, power could be applied to draw themachine which was not carried by the machine. In such case it wouldpreferably be attached to the forward end of the frame. I have shown theoperative parts connected by sprocket-chains, as they are light andstrong; but, if desired, shafting and gearing suitable therefor may beused to impart motion between the parts of the machine. Other power thana gasolene-engine may be used on the cultivator to drive it, such as anelectric-motor driven by storage batteries; but I prefer thegasoleneengine, as it is lighter.

Having described my invention, what I claim as new, and desire to secureby Letters Patent, is

1. A cultivator comprising a frame, traction-wheeis carried thereby,means for guiding the cultivator, an auxiliary frame pivotally securedto the main frame, a cultivatorshaft journaled in the auxiliary frame,cultivators secured on the shaft, racks pivotally secured to theauxiliary frame, a pinion journaled on the main frame, pinions securedthereon, the pinions engaging the racks,

\ means for actuating the pinions to raise and lower the racks and thecultivators, means when the cultivator-shaft is actuated and vice Iversa whereby the cultivators and tractionwheels each serve to drive thecultivator at difierent times.

2. A cultivator comprising a main frame having apertures therein, atraction-axlejournaled therein, traction-wheels carried by the shaft,means for guiding the cultivator, an auxiliary frame, one end of whichis pivotally secured in one of the apertures of the main frame, acultivator-shaft journaled in the auxiliary frame, cultivator-wheelscarried by the cultivator-shaft, racks pivotally secured to the free endof the auxiliary frame, the cultivator-shaft lying between the pivotedend and the free end of the auxiliary frame, the racksextending throughaperturesformed in the main frame and means engaging the racks to raiseand lower the auxiliary frame.

3. A cultivator comprisinga frame, a traction-axle, traction-wheelscarried thereby, means for guiding the cultivator, an auxiliary framepivotally secured to the main frame, cultivatorwheels carried thereby,means for raising and lowering the auxiliary frame, means for actuatingthe tractionwheels and means for actuating the cultivator-wheels, thevarious means each independent of one another and actuatednonsimultaneously, the cultivator-wheels serving also as traction-wheelswhen the cultivator is in operation, the traction-wheels remainingunactuated.

4. A cultivator com prisinga main auxiliary frame pivotally secured tothe main frame and extending rearwardly from its pivotal point, rackscarried by one of the frames, gears carried'by the other frame andengaging the racks, and means for operating the gears, a partialmovement of which in one direction is adapted to lower the auxiliaryframe with respect to the main frame and a continued movement of thegears adapted to raise the main frame with respect to the auxiliaryframe.

5. A cultivator com prising a main frame, a traction axle journaledtherein, tractionwheels carried thereby, an auxiliary frame pivotallysecuredto the main frame, a cultivator shaft journaled therein,cultivatorwheels carried by the shaft, a pinion-shaft journaled in themain frame pinions carried thereby, racks carried by the auxiliary frameand meshing with the pinions means for actuating the traction-axle, andseparate means for actuating the cultivator-shaft, the means so locatedwith reference to one another that one is out of operation when theother is in operation, whereby the cultivator wheels serve also astraction-Wheels when the traction-wheels proper are idle.

6. A cultivator comprising a main frame, a traction axle journaledtherein, tractionwheels carried by the axle, an axuiliary frame movablewith relation to the main frame, a cultivatorshaft journaled in theauxiliary frame, cultiva tor-wheels carried by the shaft, racks securedto the auxiliary frame, a pinion-shaft mounted on the main frame,pinions carried by the shaft and meshing with the racks, a drive-shaftmounted on the main frame, means for driving the shaft, and separate andindependently-operated means for actuating the cultivator-shaft and thetraction-axle, the cultivator-shaft and tractionaxie adapted to beoperated alternately 7. A cultivator comprising a main frame, anauxiliary frame attached and movable with respect to the main frame,racks carried by the auxiliary frame, a pinion-shaft mounted on the mainframe, pinions carried by the shaft and meshing with the racks, asecondary shaftlikewise mounted on the main frame, gearing extendingbetween the two shafts, a ratchet-wheel mounted upon the secondaryshaft, a lever for rotating the ratchet and consequently the two shaftsand means for retaining the ratchet in locked position.

8. A cultivator comprising a main frame,

an auxiliary frame attached and movable with respect to the main frame,racks carried by the auxiliary frame, a pinion-shaft mounted on the mainframe, pinions carried by the shaft and meshing with the racks, asecondit against rotation.

secured upon the shaft, each periphery proary shaft likewise mounted onthe main frame, gearing extending between the two shafts, a doubleratchet-Wheel secured to the secondary shaft, a lever for rotating theratchet and consequently the shafts and pinions and a locking-leverengaging the ratchet-wheel to lock 9. A cultivator comprising a mainframe, a traction axle journaled therein, tractionwheels secured to theaxle, an auxiliary frame secured and movable with relation to the mainframe, cultivator-wheels carriedby the auxiliary frame, a pinion-shaftjournaled on the main frame, a double sprocket loosely mounted thereon,asprocket mounted on the traction-axle, a drive-shaft, a sprocket carriedthereby and chains connecting the sprockets to actuate thetraction-axle.

10. A cultivator comprising a frame supported upon, traction-wheels, anauxiliary frame movably secured to the main frame, a shaft carried bythe auxiliary frame, and a plurality of broad, solid, annularperipheries vided with a plurality of removable teeth extending outwardtherefrom, each tooth provided witha stem passing through the peripheryand means engaging the stem and the innor surface of the periphery toretain the teeth in position.

11. A cultivator comprising a frame supported upon traction-wheels, anauxiliary frame movably secured to the main frame, a shaft carried bythe auxiliary frame, the ends 1 of the shaft protruding beyond each sideof the cultivator, a plurality of annular broad disks secured upon theshaft, inside and outside the frame, the peripheries being provided withteeth.

12. In a cultivator, the combination with a main frame, a guiding-wheelat the front end and an axle and traction-Wheels secured thereto at therear end thereof, of an auxiliary -mounted on the pinion-shaft, asecondary shaft carried by the main frame, a sprocket secured thereto, asprocket-chain connecting Y the sprockets, a den ble-toothedratchet-wheel secured to the secondary shaft, a pivoted detent-leverengaging the ratchet-wheel to prevent the rotation of the shaft, and anoper- I ating-lever engaging the ratchet to rotate the latter when thedetent-lever is released.

In witness thatl claim the foregoing I have hereuntosubscribed my namethis 15th day of November, 1902.

JOSEPH H. MARTIN.

Witnesses:

G. E. HARPHAM, HENRY T. HAZARD.

